Embedded Files
Compression is vitally important for transferring and storing information on computers. In this section we will be examining one type of compression related to how computers store text.
LEARN THE FUNDAMENTALS OF TEXT COMPRESSION
LEARN THE FUNDAMENTALS OF TEXT COMPRESSION
Task 3.1
Task 3.1
Poi E Text Compression
Poi E Text Compression
Click on the image to open the task.
In the first task we are simply going to remove all the repeating characters or phrases in order to see how much of the content we don't need to store on the computer.
Task 3.2
Task 3.2
Encoding using Dictionaries
Encoding using Dictionaries
Click on the image to open the task.
You now need to encode the poem using the key provided.
Task 3.3
Task 3.3
Trying out the Text Compression Widget
Trying out the Text Compression Widget
Click on the image to open the task.
Have a go at getting the best compression you can using the Text Compression Widget on Code.org
This is a link to the code.org site
https://studio.code.org/s/text-compression/lessons/1/levels/2
TEXT COMPRESSION ASSESSMENT
TEXT COMPRESSION ASSESSMENT
FURTHER RESOURCES
FURTHER RESOURCES
More Text Compression Widget
More Text Compression Widget
https://studio.code.org/s/text-compression/stage/1/puzzle/2
Which piece of text can you get the highest Compression % on?
What happens when you try and compress the "Aaaaaaaaaa..."?
NZ CURRICULUM
NZ CURRICULUM
Digital Technologies | Progress Outcomes
Digital Technologies | Progress Outcomes
COMPUTATIONAL THINKING FOR DIGITAL TECHNOLOGIES
COMPUTATIONAL THINKING FOR DIGITAL TECHNOLOGIES
At the end of this topic students will have had the opportunity to cover;
understand that there can be more than one algorithm for the same problem PO3
understand that digital devices store data using just two states represented by binary digits (bits) PO3
debug simple algorithms and programs by identifying when things go wrong with their instructions and correcting them PO4
be able to explain why things went wrong and how they fixed them PO4
understand that digital devices represent data with binary digits and can detect errors in data storage and transmission PO4
evaluate the efficiency of algorithms PO4
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